<!-- Buttons to add to the header. -->
<core-navbar-buttons end>
    <core-context-menu>
        <core-context-menu-item *ngIf="externalUrl" [priority]="900" [content]="'core.openinbrowser' | translate" [href]="externalUrl" [iconAction]="'open'"></core-context-menu-item>
        <core-context-menu-item *ngIf="description" [priority]="800" [content]="'core.moduleintro' | translate" (action)="expandDescription()" [iconAction]="'arrow-forward'"></core-context-menu-item>
        <core-context-menu-item *ngIf="blog" [priority]="750" content="{{'addon.blog.blog' | translate}}" [iconAction]="'fa-newspaper-o'" (action)="gotoBlog($event)"></core-context-menu-item>
        <core-context-menu-item *ngIf="loaded && !hasOffline && isOnline" [priority]="700" [content]="'core.refresh' | translate" (action)="doRefresh(null, $event)" [iconAction]="refreshIcon" [closeOnClick]="false"></core-context-menu-item>
        <core-context-menu-item *ngIf="loaded && hasOffline && isOnline"  [priority]="600" [content]="'core.settings.synchronizenow' | translate" (action)="doRefresh(null, $event, true)" [iconAction]="syncIcon" [closeOnClick]="false"></core-context-menu-item>
        <core-context-menu-item *ngIf="prefetchStatusIcon" [priority]="500" [content]="prefetchText" (action)="prefetch($event)" [iconAction]="prefetchStatusIcon" [closeOnClick]="false"></core-context-menu-item>
        <core-context-menu-item *ngIf="size" [priority]="400" [content]="'core.removefiles' | translate:{$a: size}" [iconDescription]="'cube'" (action)="removeFiles()" [iconAction]="'trash'"></core-context-menu-item>
    </core-context-menu>
</core-navbar-buttons>

<!-- Content. -->
<core-loading [hideUntil]="loaded" class="core-loading-center">

    <core-tabs [hideUntil]="loaded" [selectedIndex]="selectedTab">
        <!-- Index/Preview tab. -->
        <core-tab [title]="'addon.mod_lesson.preview' | translate" (ionSelect)="indexSelected()">
            <ng-template>
                <core-course-module-description [description]="description" [component]="component" [componentId]="componentId" contextLevel="module" [contextInstanceId]="module.id" [courseId]="courseId"></core-course-module-description>

                <!-- Prevent access messages. Only show the first one. -->
                <div class="core-info-card" icon-start *ngIf="lesson && preventMessages && preventMessages.length">
                    <ion-icon name="information-circle"></ion-icon>
                    <span [innerHTML]="preventMessages[0].message"></span>
                </div>

                <!-- Lesson has data to be synchronized -->
                <div class="core-warning-card" icon-start *ngIf="hasOffline">
                    <ion-icon name="warning"></ion-icon>
                    {{ 'core.hasdatatosync' | translate: {$a: moduleName} }}
                </div>

                <!-- Input password for protected lessons. -->
                <ion-card *ngIf="askPassword">
                    <form ion-list (ngSubmit)="submitPassword($event, passwordinput)">
                        <ion-item text-wrap>
                            <ion-label stacked>{{ 'addon.mod_lesson.enterpassword' | translate }}</ion-label>
                            <core-show-password item-content [name]="'password'">
                                <ion-input name="password" type="password" placeholder="{{ 'core.login.password' | translate }}" [core-auto-focus] #passwordinput [clearOnEdit]="false"></ion-input>
                            </core-show-password>
                        </ion-item>
                        <ion-item>
                            <button ion-button block type="submit" icon-end>
                                {{ 'addon.mod_lesson.continue' | translate }}
                                <ion-icon name="arrow-forward" md="ios-arrow-forward"></ion-icon>
                            </button>
                        </ion-item>
                    </form>
                </ion-card>

                <core-loading [hideUntil]="!showSpinner">

                    <ion-list *ngIf="(lesson && (!preventMessages || !preventMessages.length)) || retakeToReview">
                        <ion-item text-wrap *ngIf="retakeToReview">
                            <!-- A retake was finished in a synchronization, allow reviewing it. -->
                            <p padding-bottom>{{ 'addon.mod_lesson.retakefinishedinsync' | translate }}</p>
                            <a ion-button block (click)="review()">{{ 'addon.mod_lesson.review' | translate }}</a>
                        </ion-item>

                        <ng-container *ngIf="lesson && (!preventMessages || !preventMessages.length)">
                            <ion-item text-wrap *ngIf="leftDuringTimed && !lesson.timelimit && !finishedOffline">
                                <!-- User left during the session and there is no time limit, ask to continue. -->
                                <p [innerHTML]="'addon.mod_lesson.youhaveseen' | translate"></p>
                                <ion-grid>
                                    <ion-row>
                                        <ion-col>
                                            <a ion-button block color="light" (click)="start(false)">{{ 'core.no' | translate }}</a>
                                        </ion-col>
                                        <ion-col>
                                            <a ion-button block (click)="start(true)">{{ 'core.yes' | translate }}</a>
                                        </ion-col>
                                    </ion-row>
                                </ion-grid>
                            </ion-item>

                            <ion-item text-wrap *ngIf="leftDuringTimed && lesson.timelimit && lesson.retake && !finishedOffline">
                                <!-- User left during the session with time limit and retakes allowed, ask to continue. -->
                                <p [innerHTML]="'addon.mod_lesson.leftduringtimed' | translate"></p>
                                <a ion-button block icon-end (click)="start(false)">
                                    {{ 'addon.mod_lesson.continue' | translate }}
                                    <ion-icon name="arrow-forward" md="ios-arrow-forward"></ion-icon>
                                </a>
                            </ion-item>

                            <ion-item text-wrap *ngIf="leftDuringTimed && lesson.timelimit && !lesson.retake">
                                <!-- User left during the session with time limit and retakes not allowed. This should be handled by preventMessages -->
                                <p [innerHTML]="'addon.mod_lesson.leftduringtimednoretake' | translate"></p>
                            </ion-item>

                            <ion-item text-wrap *ngIf="!leftDuringTimed && !finishedOffline">
                                <!-- User hasn't left during the session, show a start button. -->
                                <a ion-button block *ngIf="!canManage" icon-end (click)="start(false)">
                                    {{ 'core.start' | translate }}
                                    <ion-icon name="arrow-forward" md="ios-arrow-forward"></ion-icon>
                                </a>
                                <a ion-button block *ngIf="canManage" icon-end (click)="start(false)">
                                    {{ 'addon.mod_lesson.preview' | translate }}
                                    <ion-icon name="search"></ion-icon>
                                </a>
                            </ion-item>

                            <ion-item text-wrap *ngIf="finishedOffline">
                                <!-- There's an attempt finished in offline. Let the user continue, showing the end of lesson. -->
                                <a ion-button block icon-end (click)="start(true)">
                                    {{ 'addon.mod_lesson.continue' | translate }}
                                    <ion-icon name="arrow-forward" md="ios-arrow-forward"></ion-icon>
                                </a>
                            </ion-item>
                        </ng-container>
                    </ion-list>
                </core-loading>
            </ng-template>
        </core-tab>

        <!-- Reports tab. -->
        <core-tab *ngIf="canViewReports" [title]="'addon.mod_lesson.reports' | translate" (ionSelect)="reportsSelected()">
            <ng-template>
                <core-loading [hideUntil]="reportLoaded">
                    <!-- Group selector if the activity uses groups. -->
                    <ion-item text-wrap *ngIf="groupInfo && (groupInfo.separateGroups || groupInfo.visibleGroups)">
                        <ion-label id="addon-mod_lesson-groupslabel" *ngIf="groupInfo.separateGroups">{{ 'core.groupsseparate' | translate }}</ion-label>
                        <ion-label id="addon-mod_lesson-groupslabel" *ngIf="groupInfo.visibleGroups">{{ 'core.groupsvisible' | translate }}</ion-label>
                        <ion-select [(ngModel)]="group" (ionChange)="setGroup(group)" aria-labelledby="addon-mod_lesson-groupslabel" interface="action-sheet">
                            <ion-option *ngFor="let groupOpt of groupInfo.groups" [value]="groupOpt.id">{{groupOpt.name}}</ion-option>
                        </ion-select>
                    </ion-item>

                    <!-- No lesson retakes. -->
                    <core-empty-box *ngIf="!overview && selectedGroupName" icon="stats" [message]="'addon.mod_lesson.nolessonattemptsgroup' | translate:{$a: selectedGroupName}">
                    </core-empty-box>
                    <core-empty-box *ngIf="!overview && !selectedGroupName" icon="stats" [message]="'addon.mod_lesson.nolessonattempts' | translate">
                    </core-empty-box>

                    <!-- General statistics for the current group. -->
                    <ion-card class="addon-mod_lesson-lessonstats" *ngIf="overview">
                        <ion-card-header text-wrap>
                            {{ 'addon.mod_lesson.lessonstats' | translate }}
                        </ion-card-header>

                        <!-- In tablet, max 2 rows with 3 columns. -->
                        <ion-list class="hidden-phone">
                            <ion-item text-wrap *ngIf="overview.lessonscored">
                                <ion-row>
                                    <ion-col text-center>
                                        <p class="item-heading">{{ 'addon.mod_lesson.averagescore' | translate }}</p>
                                        <p *ngIf="overview.numofattempts > 0">{{ 'core.percentagenumber' | translate:{$a: overview.avescore} }}</p>
                                        <p *ngIf="overview.numofattempts <= 0">{{ 'addon.mod_lesson.notcompleted' | translate }}</p>
                                    </ion-col>

                                    <ion-col text-center>
                                        <p class="item-heading">{{ 'addon.mod_lesson.highscore' | translate }}</p>
                                        <p *ngIf="overview.highscore != null">{{ 'core.percentagenumber' | translate:{$a: overview.highscore} }}</p>
                                        <p *ngIf="overview.highscore == null">{{ 'addon.mod_lesson.notcompleted' | translate }}</p>
                                    </ion-col>

                                    <ion-col text-center>
                                        <p class="item-heading">{{ 'addon.mod_lesson.lowscore' | translate }}</p>
                                        <p *ngIf="overview.lowscore != null">{{ 'core.percentagenumber' | translate:{$a: overview.lowscore} }}</p>
                                        <p *ngIf="overview.lowscore == null">{{ 'addon.mod_lesson.notcompleted' | translate }}</p>
                                    </ion-col>
                                </ion-row>
                            </ion-item>

                            <ion-item text-wrap>
                                <ion-row>
                                    <ion-col text-center>
                                        <p class="item-heading">{{ 'addon.mod_lesson.averagetime' | translate }}</p>
                                        <p *ngIf="overview.avetime != null && overview.numofattempts">{{ overview.avetimeReadable }}</p>
                                        <p *ngIf="overview.avetime == null || !overview.numofattempts">{{ 'addon.mod_lesson.notcompleted' | translate }}</p>
                                    </ion-col>

                                    <ion-col text-center>
                                        <p class="item-heading">{{ 'addon.mod_lesson.hightime' | translate }}</p>
                                        <p *ngIf="overview.hightime != null">{{ overview.hightimeReadable }}</p>
                                        <p *ngIf="overview.hightime == null">{{ 'addon.mod_lesson.notcompleted' | translate }}</p>
                                    </ion-col>

                                    <ion-col text-center>
                                        <p class="item-heading">{{ 'addon.mod_lesson.lowtime' | translate }}</p>
                                        <p *ngIf="overview.lowtime != null">{{ overview.lowtimeReadable }}</p>
                                        <p *ngIf="overview.lowtime == null">{{ 'addon.mod_lesson.notcompleted' | translate }}</p>
                                    </ion-col>
                                </ion-row>
                            </ion-item>
                        </ion-list>

                        <!-- In phone, 3 rows with 1 or 2 columns. -->
                        <ion-list class="hidden-tablet">
                            <ion-item text-wrap>
                                <ion-row>
                                    <ion-col text-center *ngIf="overview.lessonscored">
                                        <p class="item-heading">{{ 'addon.mod_lesson.averagescore' | translate }}</p>
                                        <p *ngIf="overview.numofattempts > 0">{{ 'core.percentagenumber' | translate:{$a: overview.avescore} }}</p>
                                        <p *ngIf="overview.numofattempts <= 0">{{ 'addon.mod_lesson.notcompleted' | translate }}</p>
                                    </ion-col>

                                    <ion-col [attr.text-center]="overview.lessonscored ? true : null">
                                        <p class="item-heading">{{ 'addon.mod_lesson.averagetime' | translate }}</p>
                                        <p *ngIf="overview.avetime != null && overview.numofattempts">{{ overview.avetimeReadable }}</p>
                                        <p *ngIf="overview.avetime == null || !overview.numofattempts">{{ 'addon.mod_lesson.notcompleted' | translate }}</p>
                                    </ion-col>
                                </ion-row>
                            </ion-item>

                            <ion-item text-wrap>
                                <ion-row>
                                    <ion-col text-center *ngIf="overview.lessonscored">
                                        <p class="item-heading">{{ 'addon.mod_lesson.highscore' | translate }}</p>
                                        <p *ngIf="overview.highscore != null">{{ 'core.percentagenumber' | translate:{$a: overview.highscore} }}</p>
                                        <p *ngIf="overview.highscore == null">{{ 'addon.mod_lesson.notcompleted' | translate }}</p>
                                    </ion-col>

                                    <ion-col [attr.text-center]="overview.lessonscored ? true : null">
                                        <p class="item-heading">{{ 'addon.mod_lesson.hightime' | translate }}</p>
                                        <p *ngIf="overview.hightime != null">{{ overview.hightimeReadable }}</p>
                                        <p *ngIf="overview.hightime == null">{{ 'addon.mod_lesson.notcompleted' | translate }}</p>
                                    </ion-col>
                                </ion-row>
                            </ion-item>

                            <ion-item text-wrap>
                                <ion-row>
                                    <ion-col text-center *ngIf="overview.lessonscored">
                                        <p class="item-heading">{{ 'addon.mod_lesson.lowscore' | translate }}</p>
                                        <p *ngIf="overview.lowscore != null">{{ 'core.percentagenumber' | translate:{$a: overview.lowscore} }}</p>
                                        <p *ngIf="overview.lowscore == null">{{ 'addon.mod_lesson.notcompleted' | translate }}</p>
                                    </ion-col>

                                    <ion-col [attr.text-center]="overview.lessonscored ? true : null">
                                        <p class="item-heading">{{ 'addon.mod_lesson.lowtime' | translate }}</p>
                                        <p *ngIf="overview.lowtime != null">{{ overview.lowtimeReadable }}</p>
                                        <p *ngIf="overview.lowtime == null">{{ 'addon.mod_lesson.notcompleted' | translate }}</p>
                                    </ion-col>
                                </ion-row>
                            </ion-item>
                        </ion-list>
                    </ion-card>

                    <!-- List of students that have retakes. -->
                    <ion-card *ngIf="overview">
                        <ion-card-header text-wrap>
                            {{ 'addon.mod_lesson.overview' | translate }}
                        </ion-card-header>

                        <a ion-item text-wrap *ngFor="let student of overview.students" [navPush]="'AddonModLessonUserRetakePage'" [navParams]="{courseId: courseId, lessonId: lesson.id, userId: student.id}">
                            <ion-avatar core-user-avatar [user]="student" item-start [userId]="student.id" [courseId]="courseId"></ion-avatar>
                            <h2>{{ student.fullname }}</h2>
                            <core-progress-bar [progress]="student.bestgrade"></core-progress-bar>
                        </a>
                    </ion-card>
                </core-loading>
            </ng-template>
        </core-tab>
    </core-tabs>
</core-loading>
